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/* $KAME: altq_cdnr.h,v 1.9 2003/07/10 12:07:48 kjc Exp $ */
/*
* Copyright (C) 1999-2002
* Sony Computer Science Laboratories Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY SONY CSL AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL SONY CSL OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _ALTQ_ALTQ_CDNR_H_
#define _ALTQ_ALTQ_CDNR_H_
#include <altq/altq.h>
/*
* traffic conditioner element types
*/
#define TCETYPE_NONE 0
#define TCETYPE_TOP 1 /* top level conditioner */
#define TCETYPE_ELEMENT 2 /* a simple tc element */
#define TCETYPE_TBMETER 3 /* token bucket meter */
#define TCETYPE_TRTCM 4 /* (two-rate) three color marker */
#define TCETYPE_TSWTCM 5 /* time sliding window 3-color maker */
/*
* traffic conditioner action
*/
struct cdnr_block;
struct tc_action {
int tca_code; /* e.g., TCACODE_PASS */
/* tca_code dependent variable */
union {
u_long un_value; /* template */
u_int8_t un_dscp; /* diffserv code point */
u_long un_handle; /* tc action handle */
struct cdnr_block *un_next; /* next tc element block */
} tca_un;
};
#define tca_value tca_un.un_value
#define tca_dscp tca_un.un_dscp
#define tca_handle tca_un.un_handle
#define tca_next tca_un.un_next
#define TCACODE_NONE 0 /* action is not set */
#define TCACODE_PASS 1 /* pass this packet */
#define TCACODE_DROP 2 /* discard this packet */
#define TCACODE_RETURN 3 /* do not process this packet */
#define TCACODE_MARK 4 /* mark dscp */
#define TCACODE_HANDLE 5 /* take action specified by handle */
#define TCACODE_NEXT 6 /* take action in the next tc element */
#define TCACODE_MAX 6
#define CDNR_NULL_HANDLE 0
struct cdnr_interface {
char cdnr_ifname[IFNAMSIZ]; /* interface name (e.g., fxp0) */
};
/* simple element operations */
struct cdnr_add_element {
struct cdnr_interface iface;
struct tc_action action;
u_long cdnr_handle; /* return value */
};
struct cdnr_delete_element {
struct cdnr_interface iface;
u_long cdnr_handle;
};
/* token-bucket meter operations */
struct cdnr_add_tbmeter {
struct cdnr_interface iface;
struct tb_profile profile;
struct tc_action in_action;
struct tc_action out_action;
u_long cdnr_handle; /* return value */
};
struct cdnr_modify_tbmeter {
struct cdnr_interface iface;
u_long cdnr_handle;
struct tb_profile profile;
};
struct cdnr_tbmeter_stats {
struct cdnr_interface iface;
u_long cdnr_handle;
struct pktcntr in_cnt;
struct pktcntr out_cnt;
};
/* two-rate three-color marker operations */
struct cdnr_add_trtcm {
struct cdnr_interface iface;
struct tb_profile cmtd_profile; /* profile for committed tb */
struct tb_profile peak_profile; /* profile for peak tb */
struct tc_action green_action; /* action for green packets */
struct tc_action yellow_action; /* action for yellow packets */
struct tc_action red_action; /* action for red packets */
int coloraware; /* color-aware/color-blind */
u_long cdnr_handle; /* return value */
};
struct cdnr_modify_trtcm {
struct cdnr_interface iface;
u_long cdnr_handle;
struct tb_profile cmtd_profile; /* profile for committed tb */
struct tb_profile peak_profile; /* profile for peak tb */
int coloraware; /* color-aware/color-blind */
};
struct cdnr_tcm_stats {
struct cdnr_interface iface;
u_long cdnr_handle;
struct pktcntr green_cnt;
struct pktcntr yellow_cnt;
struct pktcntr red_cnt;
};
/* time sliding window three-color marker operations */
struct cdnr_add_tswtcm {
struct cdnr_interface iface;
u_int32_t cmtd_rate; /* committed rate (bits/sec) */
u_int32_t peak_rate; /* peak rate (bits/sec) */
u_int32_t avg_interval; /* averaging interval (msec) */
struct tc_action green_action; /* action for green packets */
struct tc_action yellow_action; /* action for yellow packets */
struct tc_action red_action; /* action for red packets */
u_long cdnr_handle; /* return value */
};
struct cdnr_modify_tswtcm {
struct cdnr_interface iface;
u_long cdnr_handle;
u_int32_t cmtd_rate; /* committed rate (bits/sec) */
u_int32_t peak_rate; /* peak rate (bits/sec) */
u_int32_t avg_interval; /* averaging interval (msec) */
};
struct cdnr_add_filter {
struct cdnr_interface iface;
u_long cdnr_handle;
#ifdef ALTQ3_CLFIER_COMPAT
struct flow_filter filter;
#endif
u_long filter_handle; /* return value */
};
struct cdnr_delete_filter {
struct cdnr_interface iface;
u_long filter_handle;
};
struct tce_stats {
u_long tce_handle; /* tc element handle */
int tce_type; /* e.g., TCETYPE_ELEMENT */
struct pktcntr tce_cnts[3]; /* tcm returns 3 counters */
};
struct cdnr_get_stats {
struct cdnr_interface iface;
struct pktcntr cnts[TCACODE_MAX+1];
/* element stats */
int nskip; /* skip # of elements */
int nelements; /* # of element stats (WR) */
struct tce_stats *tce_stats; /* pointer to stats array */
};
#define CDNR_IF_ATTACH _IOW('Q', 1, struct cdnr_interface)
#define CDNR_IF_DETACH _IOW('Q', 2, struct cdnr_interface)
#define CDNR_ENABLE _IOW('Q', 3, struct cdnr_interface)
#define CDNR_DISABLE _IOW('Q', 4, struct cdnr_interface)
#define CDNR_ADD_FILTER _IOWR('Q', 10, struct cdnr_add_filter)
#define CDNR_DEL_FILTER _IOW('Q', 11, struct cdnr_delete_filter)
#define CDNR_GETSTATS _IOWR('Q', 12, struct cdnr_get_stats)
#define CDNR_ADD_ELEM _IOWR('Q', 30, struct cdnr_add_element)
#define CDNR_DEL_ELEM _IOW('Q', 31, struct cdnr_delete_element)
#define CDNR_ADD_TBM _IOWR('Q', 32, struct cdnr_add_tbmeter)
#define CDNR_MOD_TBM _IOW('Q', 33, struct cdnr_modify_tbmeter)
#define CDNR_TBM_STATS _IOWR('Q', 34, struct cdnr_tbmeter_stats)
#define CDNR_ADD_TCM _IOWR('Q', 35, struct cdnr_add_trtcm)
#define CDNR_MOD_TCM _IOWR('Q', 36, struct cdnr_modify_trtcm)
#define CDNR_TCM_STATS _IOWR('Q', 37, struct cdnr_tcm_stats)
#define CDNR_ADD_TSW _IOWR('Q', 38, struct cdnr_add_tswtcm)
#define CDNR_MOD_TSW _IOWR('Q', 39, struct cdnr_modify_tswtcm)
#ifndef DSCP_EF
/* diffserve code points */
#define DSCP_MASK 0xfc
#define DSCP_CUMASK 0x03
#define DSCP_EF 0xb8
#define DSCP_AF11 0x28
#define DSCP_AF12 0x30
#define DSCP_AF13 0x38
#define DSCP_AF21 0x48
#define DSCP_AF22 0x50
#define DSCP_AF23 0x58
#define DSCP_AF31 0x68
#define DSCP_AF32 0x70
#define DSCP_AF33 0x78
#define DSCP_AF41 0x88
#define DSCP_AF42 0x90
#define DSCP_AF43 0x98
#define AF_CLASSMASK 0xe0
#define AF_DROPPRECMASK 0x18
#endif
#ifdef _KERNEL
/*
* packet information passed to the input function of tc elements
*/
struct cdnr_pktinfo {
int pkt_len; /* packet length */
u_int8_t pkt_dscp; /* diffserv code point */
};
/*
* traffic conditioner control block common to all types of tc elements
*/
struct cdnr_block {
LIST_ENTRY(cdnr_block) cb_next;
int cb_len; /* size of this tc element */
int cb_type; /* cdnr block type */
int cb_ref; /* reference count of this element */
u_long cb_handle; /* handle of this tc element */
struct top_cdnr *cb_top; /* back pointer to top */
struct tc_action cb_action; /* top level action for this tcb */
struct tc_action *(*cb_input)(struct cdnr_block *,
struct cdnr_pktinfo *);
};
/*
* top level traffic conditioner structure for an interface
*/
struct top_cdnr {
struct cdnr_block tc_block;
LIST_ENTRY(top_cdnr) tc_next;
struct ifaltq *tc_ifq;
LIST_HEAD(, cdnr_block) tc_elements;
#ifdef ALTQ3_CLFIER_COMPAT
struct acc_classifier tc_classifier;
#endif
struct pktcntr tc_cnts[TCACODE_MAX+1];
};
/* token bucket element */
struct tbe {
u_int64_t rate;
u_int64_t depth;
u_int64_t token;
u_int64_t filluptime;
u_int64_t last;
};
/* token bucket meter structure */
struct tbmeter {
struct cdnr_block cdnrblk; /* conditioner block */
struct tbe tb; /* token bucket */
struct tc_action in_action; /* actions for IN/OUT */
struct tc_action out_action; /* actions for IN/OUT */
struct pktcntr in_cnt; /* statistics for IN/OUT */
struct pktcntr out_cnt; /* statistics for IN/OUT */
};
/* two-rate three-color marker structure */
struct trtcm {
struct cdnr_block cdnrblk; /* conditioner block */
struct tbe cmtd_tb; /* committed tb profile */
struct tbe peak_tb; /* peak tb profile */
struct tc_action green_action;
struct tc_action yellow_action;
struct tc_action red_action;
int coloraware;
u_int8_t green_dscp;
u_int8_t yellow_dscp;
u_int8_t red_dscp;
struct pktcntr green_cnt;
struct pktcntr yellow_cnt;
struct pktcntr red_cnt;
};
/* time sliding window three-color marker structure */
struct tswtcm {
struct cdnr_block cdnrblk; /* conditioner block */
u_int32_t avg_rate; /* average rate (bytes/sec) */
u_int64_t t_front; /* timestamp of last update */
u_int64_t timewin; /* average interval */
u_int32_t cmtd_rate; /* committed target rate */
u_int32_t peak_rate; /* peak target rate */
struct tc_action green_action;
struct tc_action yellow_action;
struct tc_action red_action;
u_int8_t green_dscp;
u_int8_t yellow_dscp;
u_int8_t red_dscp;
struct pktcntr green_cnt;
struct pktcntr yellow_cnt;
struct pktcntr red_cnt;
};
#endif /* _KERNEL */
#endif /* _ALTQ_ALTQ_CDNR_H_ */